The National Security Agency once used this building to house their cryptology artifacts so employees could see how it was done “back in the day”. It’s now a comprehensive collection of U.S. cryptologic history. The making and deciphering of codes is, of course, an important aspect of national security. And it certainly seems beyond comprehension for many of us. This museum gives a unique inside look into the process. You’ll discover how encryption worked with only pen and paper, then eventually with simple mechanical aids, and with many technologic advances since. You’ll discover the amazing role encryption has played through history, including many prominently known historic events. You’ll see Civil War telegraph equipment, World War II Enigma code-breaking machines, and the super computers used today. This fascinating museum lets you peek into a world you may have barely imagined, making it just one of the amazing discoveries available through Washington D.C. educational tours.